package demo3;

public class KeyBoard implements IUSB{
    @Override
    public void openDevice() {
        System.out.println("打开键盘");
    }
public void inPut(){
    System.out.println("输入键盘");
}
    @Override
    public void closeDevice() {
        System.out.println("关闭键盘");
    }
}
